Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy
Patent
1992-12-04
1994-06-28
Niebling, John
Chemistry: electrical and wave energy
Processes and products
Processes of treating materials by wave energy
204402, 204412, 204434, G01N 2726
Patent
active
053244001
ABSTRACT:
A method of preconditioning an electrode for use in a plating bath monitoring process. The method involves applying at least one anodic signal to an electrode in contact with the plating bath solution in order to yield a reproducibly clean and stabilized electrode surface, and then applying a plating signal to deposit a layer of metal on the anodically treated electrode. The resultant preconditioned electrode improves the accuracy and precision of subsequent voltammetric monitoring measurements for a variety of different plating baths. The method is easily integrated with and thereby enhances the capabilities of known voltammetric plating bath monitoring processes.
REFERENCES:
Tench et al., Cyclic Pulse Voltammetric Stripping Analysis of Acid Copper Plating Baths, Jun. 1984, pp. 831-834.
Eliash Bruce M.
Ludwig Frank A.
Phan Nguyet H.
Reddy Vilambi N.
Bell Bruce F.
Denson-Low W. K.
Hughes Aircraft Company
Lachman M. E.
Niebling John
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